AS3 If (child on screen){play child} (keyboard.event)

[dalvydasv27776233]

Maby someone can help me with this?:

I have this script:

var answerA:Array=[];

function answerF(answerS:String,x:int,y:int,space:int):void{

var raides:int = answerS.length;

var word:int;

if ((answerS.length % 2) == 0){

    word = (((raides * 150) + ((raides - 1) * space))/2 - 150);

} else {

    word = ((((raides -1) * 150) + ((raides - 1) * space))/2)-75;

}

var nextX:int = x - word;

var C:Class;

var letter:MovieClip;

for(var i:int=0;i<answerS.length;i++){

C=Class(getDefinitionByName(answerS.charAt(i)));

letter=new C();

addChild(letter);

answerA.push(letter);

letter.x=nextX;

letter.y=y;

nextX+=letter.width+space;

}

}

On library i have objects with names A,B,C,D,E,F... to Z

This script adds letters from library. With this script everything ok he works perfectly for me but I want to do Keyboard event for every letter to play but now i dont know how to do that.

I have a script:

stage.addEventListener(KeyboardEvent.KEY_DOWN, AKeyDown);

function AKeyDown(event:KeyboardEvent):void{

    if (event.keyCode == Keyboard.A){

              A.play();

      }

}

This script works then object have instace name.

And this is that I want to do:

stage.addEventListener(KeyboardEvent.KEY_DOWN, AKeyDown);

function AKeyDown(event:KeyboardEvent):void{

if (event.keyCode == Keyboard.A){

               if Child with class name A exist on screen {

               play object with class name A   

    } else {

    var errorR: Sound = new eror();

    errorR.play(0, 1);

  }

}

}

[nezarov]

if (childName.stage)

{

     childName.play();

     trace("Exist");

}

else

{

// your code.

}

[dalvydasv27776233]

1119: Access of possibly undefined property stage through a reference with static type Class.

1061: Call to a possibly undefined method play through a reference with static type Class.

[dalvydasv27776233]

stage.addEventListener(KeyboardEvent.KEY_DOWN, AKeyDown);

function AKeyDown(event:KeyboardEvent):void{

if (event.keyCode == Keyboard.A){

    if (A.stage){

        A.play();

     trace("Exist"); 

    } else {

    var errorR: Sound = new eror();

    errorR.play(0, 1);

  }

}

}

[nezarov]

Try this:

for(var i:int=0;i<answerS.length;i++){

C=Class(getDefinitionByName(answerS.charAt(i)));

letter=new C();

//give in a name:

letter.name = (answerS.charAt(i)) + "_mc"; // A_mc

addChild(letter);

answerA.push(letter);

letter.x=nextX;

letter.y=y;

nextX+=letter.width+space;

}

Then:

if(answerA.A_mc.stage) // The character in the string must be A not a

{

     answerA.A_mc.play();

}

[dalvydasv27776233]

#1010: A term is undefined and has no properties.

stage.addEventListener(KeyboardEvent.KEY_DOWN, AKeyDown);

function AKeyDown(event:KeyboardEvent):void{

if (event.keyCode == Keyboard.A){

   if(answerA.A_mc.stage){

     answerA.A_mc.play(1);

} else {

    var errorR: Sound = new eror();

    errorR.play(0, 1);

  }

}

}

[nezarov]

Sorry it was wrong to use answerA. it's an array not movie clip.. remove it and try

if(A_mc.stage){

     A_mc.play(1);

}

Note that Mr. Ned Murphy's answer is more professional try to understand it to fix the error.

[dalvydasv27776233]

Thanks for help.

But im "GREEN" in as3. I understand simple things and can do it but with childs I still dont undertand how it works.

I dont know how to change the keyboard character to uppercase.

NOW I HAVE THIS:

var answerA:Array=[];

function answerF(answerS:String,x:int,y:int,space:int):void{

var raides:int = answerS.length;

var word:int;

if ((answerS.length % 2) == 0){

    word = (((raides * 150) + ((raides - 1) * space))/2 - 150);

} else {

    word = ((((raides -1) * 150) + ((raides - 1) * space))/2)-75;

}

var nextX:int = x - word;

var C:Class;

var letter:MovieClip;

for(var i:int=0;i<answerS.length;i++){

C=Class(getDefinitionByName(answerS.charAt(i)));

letter=new C();

letter.name = (answerS.charAt(i)) + "_mc"; // A_mc

addChild(letter);

answerA.push(letter);

letter.x=nextX;

letter.y=y;

nextX+=letter.width+space;

}

}

And for keyboard events i have this:

stage.addEventListener(KeyboardEvent.KEY_DOWN, AKeyDown);

function AKeyDown(event:KeyboardEvent):void{

if (event.keyCode == Keyboard.A){

   if(answerA.A_mc.Stage){

     answerA.A_mc.play();

} else {

    var errorR: Sound = new eror();

    errorR.play(0, 1);

  }

}

}

[nezarov]

Use this code and mark the reply number 4 as the correct answer please

var answerA: Array = [];

function answerF(answerS: String, x: int, y: int, space: int): void {

    var raides: int = answerS.length;

    var word: int;

    if ((answerS.length % 2) == 0) {

        word = (((raides * 150) + ((raides - 1) * space)) / 2 - 150);

    } else {

        word = ((((raides - 1) * 150) + ((raides - 1) * space)) / 2) - 75;

    }

    var nextX: int = x - word;

    var C: Class;

    var letter: MovieClip;

    for (var i: int = 0; i < answerS.length; i++) {

        C = Class(getDefinitionByName(answerS.charAt(i)));

        letter = new C();

        letter.name = (answerS.charAt(i));

        addChild(letter);

        answerA.push(letter);

        letter.x = nextX;

        letter.y = y;

        nextX += letter.width + space;

    }

}

stage.addEventListener(KeyboardEvent.KEY_DOWN, AKeyDown);

function AKeyDown(event:KeyboardEvent):void{

    trace("Key Pressed: " + String.fromCharCode(event.charCode));

    try

    {

        var ltr:MovieClip = MovieClip(getChildByName(String.fromCharCode(event.charCode)));

        ltr.play();

    }

    catch (error)

    {

        trace("Wrong Char");

        var errorR: Sound = new eror();

        errorR.play(0, 1);

    }

}

[nezarov]

This function will check the both cases lowercase & uppercase:

stage.addEventListener(KeyboardEvent.KEY_DOWN, AKeyDown);

function AKeyDown(event:KeyboardEvent):void{

    trace("Key Pressed: " + String.fromCharCode(event.charCode));

    try

    {

        var lowerCaseltr:MovieClip = MovieClip(getChildByName(String.fromCharCode(event.charCode)));

        lowerCaseltr.play();

    }

    catch (error)

    {

        try

        {

            var upperCaseltr:MovieClip = MovieClip(getChildByName(String(String.fromCharCode(event.charCode)).toUpperCase()));

            upperCaseltr.play();

        }

        catch (error)

        {

        trace("Wrong Char");

        //var errorR: Sound = new eror();

        //errorR.play(0, 1);

        }

    }

}

[dalvydasv27776233]

It works

BUT

If in stage script add 2 same objecta.. key event play just one.

For example:

If I have letter childs

ABCDEFA

tha last A didnt play.

And if where is no letter the script didt play the error sound. 😕

[nezarov]

Do you want to play the similar characters together in one key press?

[dalvydasv27776233]

Yes.

Example:

AABCDA

If I pres A key play all 3 letters movie clips on stage.

BADFEBB

If I pres B key play all B letters movie clips on stage.

[nezarov]

//first thing edit this line in the answerF() function:

letter.name = (answerS.charAt(i) +i); // the names will be "A0, A1 etc..

//create this variable:

var lettersChecked:Number = 0;

stage.addEventListener(KeyboardEvent.KEY_DOWN, AKeyDown);

function AKeyDown(event:KeyboardEvent):void{

    trace("Key Pressed: " + String.fromCharCode(event.charCode).toLowerCase);

    for(var i:int = 0; i< 4; i++) // change number 4 to answerString.length (use the same string you're sending to the answerF() function)

    {

        try

        {

            var upperCaseltr:MovieClip = MovieClip(getChildByName(String(String.fromCharCode(event.charCode)+i).toUpperCase()));

            upperCaseltr.play();

            lettersChecked += 1;

        }

        catch (error)

        {

            false;

        }

    };

    checkError();

};

function checkError():void

{

    if(lettersChecked == 0) // if still 0 that means the for-loop didn't count any movie clip and all the attempts were failed. that means the pressed key was wrong

    {

        var errorR:Sound = new eror();

        errorR.play(0, 1);

        lettersChecked = 0; // reset

    }

    else

    {

        lettersChecked = 0; // reset

    }

};

[dalvydasv27776233]

for(var i:int = 0; i< 4; i++) // change number 4 to answerString.length (use the same string you're sending to the answerF() function)

Like this:

for(var i:int = 0; i < answerS.length; i++) ?

I have error:

1120: Access of undefined property answerS.

[nezarov]

No, answerS string is not visible to the other functions.. How you're sending the answerS to the answerF?

like this?

function answerF("THE ANSWER",10,10)

or like this?

function answerF(someString,10,10)

[dalvydasv27776233]

answerF(answersArray[randomArray[index]],960,540,5);

[nezarov]

Ok you can create one more string:

var currentWord:String = '';

then when you send a new word to the answerF , update the currentWord string:

function answerF(answerS:String,x:int,y:int,space:int):void{

currentWord = answerS;

var raides:int = answerS.length;

var word:int;

.

.

.

now you can use the currentWord.length in the for-loop:

for(var i:int = 0; i< currentWord.length; i++)

[nezarov]

Or you can also use the raides variable instead but make it visible to the other functions by creating it in the main timeline not inside the function:

var raides:int = 0;

function answerF(answerS:String,x:int,y:int,space:int):void{

raides = answerS.length; //update it and use it anywhere

var word:int;

.

.

for(var i:int = 0; i< raides; i++)

[dalvydasv27776233]

Thank you very much Everything is working.

I have some problems with Lithuanian language. In lithuanian language is some special letters like: Ą,Č,Ę,Ė,Į,Š,Ų,Ū,Ž. Then script uploads answer from txt file these litnuanian letters he understand like À,È,Æ,Ë,Á,Ð,Ø,Û,Þ and I dont know why.. For that reason for lithuanian letters move clips I add class names with other symbols. Letter Ą class name is À, letter Č class name is È, letter Ę = Æ, letter Ė = Ë, Į = Á, Š = Ð, Ų = Ø, Ū = Û, Ž = Þ.  So how i can do that then I press the A key the flash plays all childs with class name A and À... Key C all childs with clas name C and È.. Key E plays E, Æ and Ë.and etc.

What need to write that cript understands that A and À this is same letter. C and È the same.. E and  E, Æ same letters and etc.

Maby you know solution for that?

[nezarov]

for (var i: int = 0; i < answerS.length; i++) {

        C = Class(getDefinitionByName(answerS.charAt(i)));

        letter = new C();

       var char:String = answerS.charAt(i);

     // Change the letter before you naming the movie clip:

        switch (char) {

            case "À": // you must change all the Lithuanian letters in the string

                char = "A"

                break;

            case "È":

                char = "C"

                break;

               // put all the cases in the same way

        }

        letter.name = (char +i);

        addChild(letter);

        answerA.push(letter);

        letter.x = nextX;

        letter.y = y;

        nextX += letter.width + space;

        //trace(letter.name);

    }

[dalvydasv27776233]

Thank you very much You my hero!!! Thanks! Everything works perfect.

Just some problems with sound. Becouse "error" sound plays then I press any key I mean numbers, shift, ctrl, esc, alt and others. Maby there is simple way to split just letter keys? (QWERTYUIOPASDFGHJKLZXCVBNM)?

[nezarov]

I think this is the only way to do that:

stage.addEventListener(KeyboardEvent.KEY_DOWN, AKeyDown);

function AKeyDown(event:KeyboardEvent):void
if(event.keyCode == 65 || event.keyCode == 66) //from 65 to 90 a to z, you have to put them all in the if statemet

{

  //put all the code here.

}

}

[dalvydasv27776233]

I have just to write keyCodes and use just one if? I mean like this:?

if(event.keyCode == 65 || event.keyCode == 66 || event.keyCode == 67 || event.keyCode == 68|| event.keyCode == 69 || event.keyCode == 70 || event.keyCode == 61 || event.keyCode == 62 || event.keyCode == 63 || event.keyCode == 64 || event.keyCode == 65 || event.keyCode == 66 || event.keyCode == 67 || .......)

{

//// This is all code for childs playing.

}

}

[nezarov]

Yes